IPA: /ˌhaɪpərkəˈrɛktli/
KK: /haɪpərkəˈrɛktli/
In a way that is overly correct or precise, often to the point of being unnatural or excessive.
She spoke hypercorrectly, using complex grammar that confused her listeners.
Hypercorrectly → It is formed from "hyper-" (meaning over or excessive) and "correct" (from Latin "correctus", meaning to set right or make straight) and the suffix "-ly" (meaning in a manner). The word "hypercorrectly" means in an excessively correct manner, often referring to language or behavior that is overly precise or formal.
Think of 'hyper-' meaning 'over' and 'correct' meaning 'to set right' — so when something is done 'hypercorrectly', it is done in an overly precise way.